LM4128AMFX-2.5/NOPB

Voltage Reference Overview

The LM4128AMFX-2.5/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments, housed in an SOT-23-5 surface-mount package. It delivers a fixed output voltage of 2.5 V with an initial accuracy of 0.1% and a temperature coefficient of 75 ppm/°C. The device operates within an input voltage range up to 6 V and supports a maximum shunt current of 20 mA. It functions reliably across an extended temperature range from -40°C to +125°C while consuming only 60 µA of supply current.

Voltage Reference Feature Summary

• Provides high-precision voltage regulation with tight initial accuracy tolerances for sensitive analog circuits
• Features ultra-low power consumption suitable for battery-operated and portable applications
• Offers stable performance over wide temperature variations without requiring external components

Voltage Reference Applications

• Portable instrumentation systems requiring precise measurement references
• Battery-powered devices needing efficient power management solutions
• Data acquisition systems utilizing analog-to-digital conversion stages

Voltage Reference Procurement Notes

Verify the specific suffix 'AMFX' against official Texas Instruments documentation to confirm the exact accuracy grade and temperature coefficient specifications. Ensure the ordering part number matches the required tolerance levels for your design. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement decisions.

Voltage Reference Selection Notes

Select this component when designing circuits that demand low quiescent current alongside high voltage stability. The SOT-23-5 package offers space efficiency for compact layouts. Consider the 75 ppm/°C drift rate when evaluating thermal environments. This series provides a robust solution for applications where power conservation and precision are equally critical design constraints.

Voltage Reference Part Context

This part belongs to the LM4128 family of micropower shunt voltage references designed for general-purpose precision applications. The family includes various output voltages and accuracy grades to suit different system requirements. These references are widely used in industrial and consumer electronics where reliable voltage regulation is essential for maintaining signal integrity.

Voltage Reference Replacement Considerations

LM4128AIMF-2.5/NOPB: Different accuracy grade and packaging configuration.